category affinity algorithm

Issue in ./help/main/c-target/c-visitor-profile/category-affinity.md

Assuming the user then views, in order, jewelry, accessories, beauty, shoes, and womens-clothing:

accessories: 6.5 (4.5 + 5 – 1 – 1 - 1)

womens-clothing: 5 (+5)

>
this // jewelry: 4.5 (2.5 + 5 – 1 – 1 - 1) // # should be (2.5 + 5 -1 -1 -1 **-1**)

shoes: 4 (+5 – 1)

beauty: 3 (+5 – 1 - 1)

Open help/main/c-target/c-visitor-profile/category-affinity.md and review the category affinity example for the stated viewing sequence. Correct the jewelry calculation to match the issue's expected subtraction, then verify that the rendered example and surrounding arithmetic are consistent.

Written by the indexing model from the issue text.